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|
#!/usr/bin/env dash
NAME="git-edit-index"
warn() {
echo "WARNING: $1"
}
help() {
cat <<EOF
Edit a file from the index. This script does not touch the unstaged variant of the file.
USAGE:
$NAME [OPTIONS] [--] FILES..
OPTIONS:
--
Stop parsing options and interpret everything as an file.
--help | -h
Display this help and exit.
--version | -v
Display version and copyright information and exit.
ARGUMENTS:
FILES := [[ git diff --name-only --cached --diff-filter=AM ]]
The files to edit.
EOF
}
GIT_DIR="$(git rev-parse --show-toplevel)"
materialize_file() {
git diff --cached "$1" >"$GIT_DIR/.git/EDIT_INDEX_PATCH"
git add "$1"
git restore --staged "$1"
cat "$1" >"$GIT_DIR/.git/EDIT_INDEX_FILE"
git restore "$1"
git apply "$GIT_DIR/.git/EDIT_INDEX_PATCH"
"$EDITOR" "$1"
git add "$1"
mv "$GIT_DIR/.git/EDIT_INDEX_FILE" "$1"
}
edit() {
files_to_add="$(mktemp)"
cleanup() {
rm "$files_to_add"
}
trap cleanup EXIT
realpath --relative-to=. "$@" >"$files_to_add"
git diff --name-only --cached --diff-filter=AM | while read -r index_file; do
if grep -q "$index_file" "$files_to_add"; then
sed -i "s|$index_file||" "$files_to_add"
materialize_file "$index_file"
fi
done
unedided_files="$(sed '/^\s*$/d' "$files_to_add" | wc -l)"
if [ "$unedided_files" -gt 0 ]; then
warn "Failed to edit $unedided_files file(s):"
cat "$files_to_add"
fi
}
for arg in "$@"; do
case "$arg" in
"--help" | "-h")
help
exit 0
;;
"--")
end_of_cli_options=true
;;
esac
[ "$end_of_cli_options" = "true" ] && break
done
edit "$@"
# vim: ft=sh
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